#include "stdio.h"

int twoDigitAdd(int a, int b) {
      int c,ge,shi,d;
   c=a+b;
   if(c>=100)
	   {
		  ge =c%10;
		  c=c/10;
		  shi=c%10;
		  d=shi*10+ge;
	   }
   return d; //todo write your algorithm here
}

int main(void)
{
    int a = 45;
    int b = 56;
    printf("%d add %d is %d", a, b, twoDigitAdd(a, b));
    return 0;
}

